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Device used to measure potential difference between two points in a circuit is ?

  • Ammeter
  • Galvanometer
  • Voltmeter
  • None of above

Answer: Option C

Similar Questions :

1. Electric Motor converts

  • Electrical energy into mechanical energy
  • Mechanical energy into Electrical energy
  • Electrical energy into light energy
  • None of above

Answer: Option A

2. What is escape velocity ?

  • Escape velocity is the maximum velocity with which a body should be projected from the surface of earth so it do not go beyond gravitational field of earth.
  • Escape velocity is the minimum velocity with which a body should be projected from the surface of earth so it do not go beyond gravitational field of earth.
  • Escape velocity is the minimum velocity with which a body should be projected from the surface of earth so as it goes out of gravitational field of earth and never return to earth.
  • Escape velocity is the maximum velocity with which a body should be projected from the surface of earth so as it goes out of gravitational field of earth and never return to earth.

Answer: Option C

3. Orbital speed of a satellite is dependent of its mass.

  • True
  • False

Answer: Option B

Explanation:

Orbital speed of a satellite is independent of its mass.

4. Which instrument is used to determine the intensity of colours ?

  • Cathetometer
  • Chronometer
  • Colorimeter
  • Commutator

Answer: Option C

Explanation:

Cathetometer - is used to determine heights,

Chronometer - is used to longitude of a vessel at sea,

Commutator - is used to convert AC to DC.

5. Which of the following is an electromagnetic wave ?

  • Cathode rays
  • Sound wave
  • Ultrasonic wave
  • Infra red rays

Answer: Option D

Read more from - Physics Questions Answers
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